NumberResearchRecent thousands-block assignments
5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, last 30 days — NPA 240
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2002-10-31 | 240-793-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | GAITHERSBG | MD |
| 2002-10-31 | 240-793-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | GAITHERSBG | MD |
| 2002-10-31 | 240-832-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2002-10-31 | 240-832-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2002-10-31 | 240-832-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2002-10-08 | 240-344-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FREDERICK | MD |
| 2002-08-27 | 240-566-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | FREDERICK | MD |
| 2002-08-27 | 240-566-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | FREDERICK | MD |
| 2002-08-06 | 240-294-2XXX | 2000–2999 | Assigned | VERIZON MARYLAND, INC. | 9212 | LAUREL236 | MD |
| 2002-08-02 | 240-313-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | HAGERSTOWN | MD |
| 2002-06-19 | 240-293-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN12 | MD |
| 2002-06-12 | 240-566-0XXX | 0000–0999 | Assigned | VERIZON MARYLAND, INC. | 9212 | FREDERICK | MD |
| 2002-06-12 | 240-566-9XXX | 9000–9999 | Assigned | VERIZON MARYLAND, INC. | 9212 | FREDERICK | MD |
| 2002-05-30 | 240-228-1XXX | 1000–1999 | Assigned | VERIZON MARYLAND, INC. | 9212 | WSNG236Z13 | MD |
| 2002-05-29 | 240-404-1XXX | 1000–1999 | Assigned | VERIZON MARYLAND, INC. | 9212 | GAITHERSBG | MD |
| 2002-05-29 | 240-404-2XXX | 2000–2999 | Assigned | VERIZON MARYLAND, INC. | 9212 | GAITHERSBG | MD |
| 2002-05-29 | 240-404-3XXX | 3000–3999 | Assigned | VERIZON MARYLAND, INC. | 9212 | GAITHERSBG | MD |
| 2002-05-29 | 240-404-4XXX | 4000–4999 | Assigned | VERIZON MARYLAND, INC. | 9212 | GAITHERSBG | MD |
| 2002-05-29 | 240-404-5XXX | 5000–5999 | Assigned | VERIZON MARYLAND, INC. | 9212 | GAITHERSBG | MD |
| 2002-05-17 | 240-215-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | FREDERICK | MD |
| 2002-05-17 | 240-236-6XXX | 6000–6999 | Assigned | VERIZON MARYLAND, INC. | 9212 | FREDERICK | MD |
| 2002-05-17 | 240-329-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | HAGERSTOWN | MD |
| 2002-05-17 | 240-356-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | MYERSVILLE | MD |
| 2002-04-04 | 240-427-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | WALDORF | MD |
| 2002-02-27 | 240-833-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNGTNZN11 | MD |
| 2002-02-14 | 240-215-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 7325 | FREDERICK | MD |
| 2002-01-21 | 240-280-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAUREL236 | MD |
| 2001-11-09 | 240-313-4XXX | 4000–4999 | Assigned | VERIZON MARYLAND, INC. | 9212 | HAGERSTOWN | MD |
| 2001-09-18 | 240-313-2XXX | 2000–2999 | Assigned | VERIZON MARYLAND, INC. | 9212 | HAGERSTOWN | MD |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.